Hello,
I'm not sure how 302s affect the test results, but I can tell you that the ANTS WebClient doesn't automatically follow redirects and that tests fail because they don't meet the thresshold criteria in the edit load dialogue, on the options tab.

Normally you wouldn't need to follow the redirects; the ANTS Load script would pick up the navigation done as the result of the client following the redirection and put it in the test script. In some rare circumstances, this doesn't happen, say if the client is instructed to follow a URL that is generated dynamically, the test script may go to the wrong URL and you'd need to script the WebClient.Get to use the URL indicated in the location header returned in the 302 response.

I've attempted to reduce my test to the simplest possible to see if I can get this to work.

I recorded a script that simply brings up the start page of my web app. This page ( ASP.NET 2.0 ) querys an MS Analysis Services Database and presents the result in a gridview.

When I run the test ( simulate 5 users for 1 minute ), I still get the message "The test system could not generate the required load or match the required profile". I guess I just don't know what this means.

"The test system could not generate the required load or match the required profile" normally means that the test never reached the goals that you'd set for it, either

ANTS Load never launched the required number of virtual clients (5)

The test script never completes

To figure out if it's case number 1, you can use perfmon, and examine the ANTS:Host:Virtual Clients counter

In the second case, check the results against the script and make sure all pages requested in the script appear in the summary information by object. Also test Summany Information by Metric->Test Errors and Http Status errors, if they're present. Maybe there is an indication there about why ANTS couldn't complete the specified test.

Sure! Use the record button repeatedly to record five different scripts. Then go into the edit load dialogue and set all five scripts to run on the composition tab. Set the ratio to 1 for each. If you set the test for five virtual users, then each virtual user should get assigned a different script to run.